CN221402163U

CN221402163U - Joint structure

Info

Publication number: CN221402163U
Application number: CN202323492864.3U
Authority: CN
Inventors: 西田大辅; 古河弘道; 圣琦
Original assignee: Nantong Yiyuan Fluid System Technology Co ltd
Current assignee: Nantong Yiyuan Fluid System Technology Co ltd
Priority date: 2023-12-21
Filing date: 2023-12-21
Publication date: 2024-07-23
Anticipated expiration: 2033-12-21

Abstract

The application relates to a joint structure, and relates to the technical field of joints. The pipe comprises a pipe, a first joint part is arranged at one end of the pipe, a second joint part is arranged at one end, deviating from the first joint part, of the pipe, and the first joint part and the second joint part are used for carrying out quick connection on an external pipeline. The application has the effect of improving the convenience of pipe communication.

Description

Joint structure

Technical Field

The application relates to the technical field of joints, in particular to a joint structure.

Background

In a workshop factory, industrial equipment, etc., for example, a pipe through which gas, steam, cooling water, etc. flows is constituted by a welded pipe (for example, a welded elbow, a welded tee, a straight pipe, etc.), however, for these types of pipe, only a qualified person can weld, and the quality is uneven due to the strength of a constructor due to construction conditions such as preparation of a welder and maintenance of a welding environment; in addition, although a screw joint is sometimes used for piping, special work such as threading a seal tape on a pipe or applying a sealant is required, and the operation is inconvenient, and the efficiency of pipe connection is lowered, so improvement is required.

Disclosure of utility model

In order to improve convenience of pipe communication, the application provides a joint structure.

The application provides a joint structure which adopts the following technical scheme:

The utility model provides a joint structure, includes tubular product, tubular product one end is provided with first joint portion, the tubular product deviates from the one end of first joint portion and is provided with the second joint portion, first joint portion and second joint portion are used for carrying out quick connect to outside pipeline.

By adopting the technical scheme, the first joint part and the second joint part can be used for carrying out quick connection installation on the external pipeline, welding operation and screwing operation are not needed on site, simple and reliable construction can be carried out even a non-skilled operator can reduce welding parts and screwing joints, so that the pressure loss of a pipeline can be reduced, uneven quality of the pipeline is restrained, and the product quality is improved.

Optionally, the first joint portion includes first joint main part and first fastening nut, first joint main part sets up in the tubular product outer wall, first joint main part end wall is provided with the first screwed pipe that supplies the outside pipeline to insert and establishes, first fastening nut threaded connection is in first screwed pipe outer wall, first screwed pipe end wall is provided with first inclined plane, first fastening nut inner wall corresponds first inclined plane and is provided with the second inclined plane, the second inclined plane offsets with first inclined plane, first inclined plane end wall is provided with the laminating pipe, laminating pipe butt is between outside pipeline and first fastening nut.

Through adopting above-mentioned technical scheme, with first joint body setting in the tubular product outer wall, through screwing first fastening nut in first screwed pipe outer wall, because first fastening nut inner wall is echelonment setting, the inner wall of first fastening nut can butt simultaneously in laminating pipe outer wall and first screwed pipe outer wall, in the in-process of installing first fastening nut, the second inclined plane offsets with first inclined plane gradually, and make first fastening nut inner wall apply the tight power of support towards outside pipeline direction to laminating the pipe, make laminating pipe can support tightly in outside pipeline outer wall gradually, support the fastening to outside pipeline, improve outside pipeline's connection stability, the first joint portion of the application is convenient high-efficient to outside pipeline's installation, on-the-spot efficiency of putting through to the pipeline has been improved.

Optionally, the laminating pipe outer wall runs through and has offered a plurality of slits, and a plurality of slits are along laminating pipe circumference direction distribution.

By adopting the technical scheme, the slit is formed in the outer wall of the attaching pipe, so that the attaching pipe is continuously bent towards the direction of the outer wall of the pipeline when the first fastening nut is screwed, and is tightly attached to the outer wall of the external pipeline, the tightness and the stability of the first joint part of the application for connecting the external pipeline are improved, and the falling probability of the external pipeline is reduced.

Optionally, a plurality of seal grooves have been seted up to first screwed pipe inner wall, the seal groove is seted up along the circumference direction of first screwed pipe inner wall, and a plurality of the seal groove distributes along the length direction of first screwed pipe, every all be provided with first sealing washer in the seal groove, first sealing washer butt is between seal groove diapire and outside pipeline outer wall.

Through adopting above-mentioned technical scheme, set up a plurality of second sealing washer and can effectively improve the leakproofness between first joint portion and outside pipeline and the tubular product, reduce the probability that gas or liquid that circulates in the tubular product revealed, improve the stability and the security of joint structure in the use.

Optionally, the second joint portion includes second joint main part and second fastening nut, the tubular product outer wall is located to second joint main part cover, second joint main part end wall is provided with the second screwed pipe that supplies outside pipeline to insert and establishes, second fastening nut threaded connection is in second screwed pipe outer wall, second fastening nut inner wall is provided with the grafting ring, the grafting groove that supplies the grafting ring to support to go into is offered along circumference direction to second screwed pipe inner wall, second fastening nut supports second screwed pipe and grafting ring tightly in outside pipeline outer wall.

Through adopting above-mentioned technical scheme, set up the second joint main part in the outer wall that tubular product deviates from the first joint main part, through screwing second fastening nut in second screwed pipe outer wall, at the in-process of installation second fastening nut, the grafting ring supports gradually into the grafting inslot, because second fastening nut inner wall is echelonment setting, the inner wall of second fastening nut can butt simultaneously in outside pipeline outer wall and second screwed pipe outer wall, make second fastening nut in pivoted in-process, the tight power of support towards outside pipeline direction is continuously applyed towards the second screwed pipe, thereby make the outside pipeline can be firmly connected in the second joint portion, stability is improved, the second joint portion of the application is convenient high-efficient to the installation of outside pipeline, the efficiency of on-the-spot switch-on is improved.

Optionally, the second threaded pipe inner wall is provided with the second sealing washer, the second sealing washer butt is between second fastening nut inner wall and outside pipeline outer wall.

Through adopting above-mentioned technical scheme, set up the second sealing washer between second fastening nut and outside pipeline can effectively improve the leakproofness between second joint portion and outside pipeline and the tubular product, reduce the probability that gas or the liquid of circulation in the tubular product revealed, improve the stability and the security of joint structure in the use.

Optionally, the first joint part and the second joint part are both in hot press fit with the pipe.

By adopting the technical scheme, the first joint part, the second joint part and the pipe are connected by adopting hot press fit, so that the pipe is high in strength and stability, the first joint part and the second joint part can be more tightly combined, external pressure and impact are effectively resisted, long-term stability and reliability are ensured, and the sealing performance is improved; in addition, the connection speed of the hot press fit is high, and the automatic equipment can be adopted for operation, so that the production efficiency of the joint structure is improved.

Optionally, the first joint part and the second joint part are made of stainless steel.

By adopting the technical scheme, the stainless steel can effectively improve the mechanical strength and the corrosion resistance of the first joint part and the second joint part, so that the joint structure can be safer and more stable in application and has longer service life.

In summary, the present application includes at least one of the following beneficial technical effects:

1. The first joint part and the second joint part can be used for quickly connecting and installing the external pipeline, welding operation and screwing operation are not needed on site, and even an unskilled operator can simply and reliably construct the pipeline, so that the welding part and the screwing joint are reduced, the pressure loss of the pipeline can be reduced, the uneven quality of the pipeline is restrained, and the product quality is improved;

2. The first joint part and the second joint part are connected with the pipe by adopting hot press fit, so that the pipe has high strength and high stability, the pipe can be more tightly combined with the first joint part and the second joint part, external pressure and impact are effectively resisted, long-term stability and reliability are ensured, and the sealing performance is improved; in addition, the connection speed of the hot press fit is high, and the automatic equipment can be adopted for operation, so that the production efficiency of the joint structure is improved.

Drawings

Fig. 1 is a schematic structural view of a joint structure according to an embodiment of the present application.

Fig. 2 is a schematic structural view of a pipe, a first joint part and a second joint part according to an embodiment of the present application.

FIG. 3 is a cross-sectional view of a tubing, a first connector portion, and a second structural portion in an embodiment of the present application.

Reference numerals illustrate: 1. a pipe; 2. a first joint part; 21. a first joint body; 211. a first threaded pipe; 212. a first inclined surface; 213. fitting the pipe; 214. a slit; 215. sealing grooves; 216. a first seal ring; 22. a first fastening nut; 221. a second inclined surface; 3. a second joint part; 31. a second connector body; 311. a second threaded tube; 312. a plug-in groove; 32. a second fastening nut; 321. a plug ring; 322. a second seal ring; 4. an external pipe.

Description of the embodiments

The application is described in further detail below with reference to fig. 1-3.

The embodiment of the application discloses a joint structure. Referring to fig. 1 and 2, including tubular product 1, tubular product 1 one end is provided with hot press fit and is connected with first joint portion 2, and a hot press fit that tubular product 1 deviates from first joint portion 2 is connected with second joint portion 3 to be used for carrying out quick connect to outside pipeline 4, in this embodiment, tubular product 1 can be multiple patterns such as straight tube, return bend, and tubular product 1, first joint portion 2 and second joint portion 3 all adopt stainless steel to make, effectively improve joint structure's mechanical strength and corrosion protection ability, increase of service life.

Referring to fig. 1 and 3, the first joint part 2 includes a first joint main body 21 and a first fastening nut 22, the first joint main body 21 is connected to the outer wall of the pipe 1 in a hot press fit manner, the end wall of the first joint main body 21, which deviates from the pipe 1, is integrally formed with a first threaded pipe 211 for inserting the external pipe 4, two sealing grooves 215 are formed in the inner wall of the first threaded pipe 211, the sealing grooves 215 are formed in the circumferential direction of the inner wall of the first threaded pipe 211, the two sealing grooves 215 are distributed in the length direction of the first threaded pipe 211, a first sealing ring 216 is arranged in each sealing groove 215 in an adhesive manner, and the first sealing ring 216 is abutted between the bottom wall of the sealing groove 215 and the outer wall of the external pipe 4 so as to improve the tightness of the first joint part 2 to the pipe 1 and the external pipe 4.

Referring to fig. 1 and 2, the end wall of the first threaded tube 211 is provided with a first inclined surface 212, one end of the first inclined surface 212 facing away from the first threaded tube 211 is inclined towards the direction of the external pipe 4, the end wall of the first inclined portion is integrally formed with a fitting tube 213, the fitting tube 213 is sleeved on the external pipe 4 outer wall, the first fastening nut 22 is in threaded connection with the first threaded tube 211 outer wall, in this embodiment, the inner wall of the first fastening nut 22 is arranged in a stepped manner, so that the inner wall of the first fastening nut 22 can simultaneously abut against the first threaded tube 211 outer wall and the fitting tube 213 outer wall, the inner wall of the first fastening nut 22 is provided with a second inclined surface 221 corresponding to the first inclined surface 212, in the process of installing the first fastening nut 22, the second inclined surface 221 gradually abuts against the first inclined surface 212, a plurality of slits 214 are formed in the process of the outer wall of the fitting tube 213, the plurality of slits 214 are distributed along the circumferential direction of the fitting tube 213, the slits 214 are formed along the length direction of the fitting tube 213, in the process of installing the first fastening nut 22, the inner wall of the first fastening nut 22 continuously applies a force towards the fitting tube 213 to the external pipe 213, so that the slits 214 are small in order to stably abut against the external pipe 4, and the outside pipe 4 is stably connected with the plurality of slits, and the outside pipe 4 is stably connected.

Referring to fig. 1, the second joint part 3 includes a second joint body 31 and a second fastening nut 32, the second joint body 31 is connected to the outer wall of the pipe 1 facing away from the first joint body in a hot press fit manner, the end wall of the second joint body 31 facing away from the pipe 1 is integrally formed with a second threaded pipe 311 for inserting an external pipe 4, the second fastening nut 32 is in threaded connection with the outer wall of the second threaded pipe 311, in this embodiment, the inner wall of the second fastening nut 32 is in a multi-layer stepped arrangement, so that the second fastening nut 32 can simultaneously abut against the outer wall of the external pipe 4 and the outer wall of the second threaded pipe 311; the second fastening nut 32 inner wall integrated into one piece has the grafting ring 321, and the grafting groove 312 that supplies grafting ring 321 to support to go into is offered along circumference direction to second screwed pipe 311 inner wall, and at the in-process of installing second fastening nut 32, second fastening nut 32 supports second screwed pipe 311 and grafting ring 321 in outside pipeline 4 outer wall tightly, after accomplishing the installation to second fastening nut 32, second screwed pipe 311 end wall and second fastening nut 32 inner wall one department ladder inner wall support.

Referring to fig. 1, a second sealing ring 322 is provided on the inner wall of the second threaded pipe 311 by gluing, the second sealing ring 322 is located on the stepped inner wall, and the second sealing ring 322 abuts between the inner wall of the second fastening nut 32 and the outer wall of the external pipe 4, so as to improve the sealing performance, and in this embodiment, the first sealing ring 216 and the second sealing ring 322 are both rubber O-rings.

The implementation principle of the joint structure of the embodiment of the application is as follows: the first joint main body 21 and the second joint main body 31 are connected to the outer walls of the two ends of the pipe 1 in a hot press fit mode through hot press equipment, the external pipe 4 is sequentially inserted into the first threaded pipe 211 and the second threaded pipe 311, and the first fastening nut 22 and the second fastening nut 32 are respectively installed, so that the attaching pipe 213 and the inserting ring 321 can effectively support and fix the corresponding external pipe 4.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. A joint structure, characterized in that: including tubular product (1), tubular product (1) one end is provided with first joint portion (2), the one end that tubular product (1) deviates from first joint portion (2) is provided with second joint portion (3), first joint portion (2) and second joint portion (3) are used for carrying out quick connect to outside pipeline (4).

2. A joint structure according to claim 1, wherein: the first joint portion (2) comprises a first joint main body (21) and a first fastening nut (22), the first joint main body (21) is arranged on the outer wall of the pipe (1), a first threaded pipe (211) for inserting an external pipe (4) is arranged on the end wall of the first joint main body (21), the first fastening nut (22) is in threaded connection with the outer wall of the first threaded pipe (211), a first inclined surface (212) is arranged on the end wall of the first threaded pipe (211), a second inclined surface (221) is arranged on the inner wall of the first fastening nut (22) corresponding to the first inclined surface (212), the second inclined surface (221) is abutted against the first inclined surface (212), a joint pipe (213) is arranged on the end wall of the first inclined surface (212), and the joint pipe (213) is abutted between the external pipe (4) and the first fastening nut (22).

3. A joint structure according to claim 2, wherein: the outer wall of the laminating pipe (213) is provided with a plurality of slits (214) in a penetrating way, and the slits (214) are distributed along the circumferential direction of the laminating pipe (213).

4. A joint structure according to claim 2, wherein: a plurality of seal grooves (215) are formed in the inner wall of the first threaded pipe (211), the seal grooves (215) are formed in the circumferential direction of the inner wall of the first threaded pipe (211), a plurality of seal grooves (215) are distributed in the length direction of the first threaded pipe (211), a first seal ring (216) is arranged in each seal groove (215), and the first seal rings (216) are abutted between the bottom wall of the seal grooves (215) and the outer wall of the external pipeline (4).

5. A joint structure according to claim 1, wherein: the second connector (3) comprises a second connector main body (31) and a second fastening nut (32), the second connector main body (31) is sleeved on the outer wall of the pipe (1), a second threaded pipe (311) for inserting an external pipe (4) is arranged on the end wall of the second connector main body (31), the second fastening nut (32) is in threaded connection with the outer wall of the second threaded pipe (311), an inserting ring (321) is arranged on the inner wall of the second fastening nut (32), an inserting groove (312) for the inserting ring (321) to abut into is formed in the inner wall of the second threaded pipe (311) along the circumferential direction, and the second fastening nut (32) abuts against the second threaded pipe (311) and the inserting ring (321) on the outer wall of the external pipe (4).

6. A joint structure according to claim 5, wherein: the inner wall of the second threaded pipe (311) is provided with a second sealing ring (322), and the second sealing ring (322) is abutted between the inner wall of the second fastening nut (32) and the outer wall of the external pipeline (4).

7. A joint structure according to claim 1, wherein: the first joint part (2) and the second joint part (3) are in hot press fit with the pipe (1).

8. A joint structure according to claim 1, wherein: the first joint part (2) and the second joint part (3) are made of stainless steel.